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Rollup merge of #79333 - o752d:patch-3, r=Mark-Simulacrum

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doc typo

plus a small edit for clarity
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Jonas Schievink 2020-11-23 15:25:51 +01:00 committed by GitHub
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4
library/alloc/src/collections/btree/map.rs
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@ -1551,12 +1551,12 @@ where
pred: F,
inner: DrainFilterInner<'a, K, V>,
}
/// Most of the implementation of DrainFilter, independent of the type
/// Most of the implementation of DrainFilter are generic over the type
/// of the predicate, thus also serving for BTreeSet::DrainFilter.
pub(super) struct DrainFilterInner<'a, K: 'a, V: 'a> {
/// Reference to the length field in the borrowed map, updated live.
length: &'a mut usize,
/// Burried reference to the root field in the borrowed map.
/// Buried reference to the root field in the borrowed map.
/// Wrapped in `Option` to allow drop handler to `take` it.
dormant_root: Option<DormantMutRef<'a, Root<K, V>>>,
/// Contains a leaf edge preceding the next element to be returned, or the last leaf edge.